Diagonals bisect each other (cut in half) Four right angles (90º) Adjacent sides are parallel [math]\parallel[/math] None of the sides are congruent [math]\cong[/math] Two sets of parallel lines [math]\parallel[/math] Diagonals are perpendicular [math]\bot[/math] Adjacent sides are congruent [math]\cong[/math] Two sets of congruent sides [math]\cong[/math] One pair of parallel lines [math]\parallel[/math] Opposite angles are congruent [math]\cong[/math] All sides are congruent [math]\cong[/math] Diagonals are congruent [math]\cong[/math] At least one angle is a right angle (90º)

Two sets of congruent sides [math]\cong[/math] Diagonals bisect each other (cut in half) None of the sides are congruent [math]\cong[/math] Adjacent sides are parallel [math]\parallel[/math] Adjacent sides are congruent [math]\cong[/math] Diagonals are perpendicular [math]\bot[/math] Two sets of parallel lines [math]\parallel[/math] At least one angle is a right angle (90º) All sides are congruent [math]\cong[/math] One pair of parallel lines [math]\parallel[/math] Diagonals are congruent [math]\cong[/math] Opposite angles are congruent [math]\cong[/math] Four right angles (90º)

Two sets of congruent sides [math]\cong[/math] Two sets of parallel lines [math]\parallel[/math] Opposite angles are congruent [math]\cong[/math] Four right angles (90º) Diagonals bisect each other (cut in half) Adjacent sides are parallel [math]\parallel[/math] None of the sides are congruent [math]\cong[/math] Diagonals are congruent [math]\cong[/math] At least one angle is a right angle (90º) All sides are congruent [math]\cong[/math] One pair of parallel lines [math]\parallel[/math] Diagonals are perpendicular [math]\bot[/math] Adjacent sides are congruent [math]\cong[/math]

Diagonals are congruent [math]\cong[/math] Four right angles (90º) Diagonals bisect each other (cut in half) None of the sides are congruent [math]\cong[/math] All sides are congruent [math]\cong[/math] Adjacent sides are congruent [math]\cong[/math] Opposite angles are congruent [math]\cong[/math] At least one angle is a right angle (90º) One pair of parallel lines [math]\parallel[/math] Two sets of congruent sides [math]\cong[/math] Two sets of parallel lines [math]\parallel[/math] Adjacent sides are parallel [math]\parallel[/math] Diagonals are perpendicular [math]\bot[/math]

None of the sides are congruent [math]\cong[/math] All sides are congruent [math]\cong[/math] Four right angles (90º) One pair of parallel lines [math]\parallel[/math] Diagonals are congruent [math]\cong[/math] Two sets of congruent sides [math]\cong[/math] Diagonals bisect each other (cut in half) At least one angle is a right angle (90º) Adjacent sides are congruent [math]\cong[/math] Two sets of parallel lines [math]\parallel[/math] Adjacent sides are parallel [math]\parallel[/math] Opposite angles are congruent [math]\cong[/math] Diagonals are perpendicular [math]\bot[/math]